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LTC4090EDJC PDF预览

LTC4090EDJC

更新时间： 2024-01-11 05:55:26
品牌 Logo 应用领域
凌特 - Linear 功率控制光电二极管
页数 文件大小 规格书
28页 392K
描述
IC,POWER CONTROL/MANAGEMENT,CMOS,LLCC,22PIN,PLASTIC

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中文翻译

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LTC4090EDJC 技术参数

是否Rohs认证： 不符合生命周期：Active
Reach Compliance Code：compliant风险等级：5.32
JESD-30 代码：R-PDSO-N22JESD-609代码：e0
端子数量：22最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：SON封装等效代码：SOLCC22,.14,20
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
电源：5 V认证状态：Not Qualified
子类别：Power Management Circuits标称供电电压 (Vsup)：5 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：DUALBase Number Matches：1

LTC4090EDJC 数据手册

 浏览型号LTC4090EDJC的Datasheet PDF文件第2页浏览型号LTC4090EDJC的Datasheet PDF文件第3页浏览型号LTC4090EDJC的Datasheet PDF文件第4页浏览型号LTC4090EDJC的Datasheet PDF文件第5页浏览型号LTC4090EDJC的Datasheet PDF文件第6页浏览型号LTC4090EDJC的Datasheet PDF文件第7页 
LTC4090  
USB Power Manager with  
2A High Voltage Bat-Track  
Buck Regulator  
FEATURES  
DESCRIPTION  
The LTC®4090 is a USB power manager plus high voltage  
Li-Ion/Polymer battery charger. This device controls the  
total current used by the USB peripheral for operation and  
battery charging. Battery charge current is automatically  
reduced such that the sum of the load current and the  
charge current does not exceed the programmed input  
current limit. The LTC4090 also accommodates high volt-  
age power supplies, such as 12V AC/DC wall adapters,  
FireWire, or automotive power.  
■
Seamless Transition Between Power Sources: Li-  
Ion Battery, USB, and 6V to 38V Supply (60V Max)  
■
2A Output High Voltage Buck Regulator with Bat-  
TrackTM Adaptive Output Control  
Internal 215mΩ Ideal Diode Plus Optional External  
■
Ideal Diode Controller Provides Low Loss Power  
Path When External Supply / USB Not Present  
■
Load Dependent Charging from USB Input Guaran-  
tees Current Compliance  
Full Featured Li-Ion Battery Charger  
■
The LTC4090 provides a Bat-Track adaptive output that  
tracksthebatteryvoltageforhighefficiencychargingfrom  
thehighvoltageinput.Thechargecurrentisprogrammable  
and an end-of-charge status output (CHRG) indicates  
full charge. Also featured are programmable total charge  
time, an NTC thermistor input used to monitor battery  
temperature while charging and automatic recharging of  
the battery.  
■
1.5A Maximum Charge Current with Thermal Limiting  
■
NTC Thermistor Input for Temperature Qualified  
Charging  
■
Tiny (3mm × 6mm × 0.75mm) 22-Pin DFN Package  
APPLICATIONS  
■
HDD-Based Media Players  
■
Personal Navigation Devices  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
Bat-Track is a trademark of Linear Technology Corporation. All other trademarks are the  
property of their respective owners.  
■
Other USB-Based Handheld Products  
Automotive Accessories  
■
TYPICAL APPLICATION  
LTC4090 High Voltage Battery  
Charger Efficiency  
90  
FIGURE 12 SCHEMATIC  
0.47μF  
6.8μH  
WITH R  
= 52k  
85  
80  
75  
70  
65  
60  
55  
50  
45  
40  
PROG  
NO OUTPUT LOAD  
BOOST  
SW  
HIGH (6V-38V)  
HVIN  
IN  
22μF  
VOLTAGE INPUT  
1μF  
HVOUT  
HVPR  
5V WALL  
ADAPTER  
4.7μF  
USB  
LTC4090  
1k  
LOAD  
4.7μF  
V
OUT  
C
HVIN = 8V  
HVIN = 12V  
HVIN = 24V  
HVIN = 36V  
TIMER  
BAT  
R
T
CLPROG  
2k  
GND PROG  
2.0  
2.5  
3.0  
V
3.5  
(V)  
4.0  
4.5  
25k  
40.2k  
100k  
BAT  
+
4090 TA01b  
270pF  
0.1μF  
Li-Ion BATTERY  
V
(TYP)  
+ 0.3V  
AVAILABLE INPUT  
HV INPUT  
OUT  
V
BAT  
5V  
USB ONLY  
V
BAT ONLY  
BAT  
4090 TAO1  
4090f  
1
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中文翻译

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